Carbon-pigment production



Aug. 18, 1925. I

- D. J. OGILVY CARBON PIGMENT PBODUCTION Fzled July 28, 1919 Pigment Productions, of which thefollowsurface that will carry or of ,thecylinden" referabl ate point over for carrying out my invention.

Patented Aug. 18, 1925,.

UNITED STATES PATENT OFFICE.

DAVID J. OGILVY, OF CINCINNATI, O HIO.

CARBON-PIGMENT PBODUCTION.

. Application filed July 28,

To all whom it may concern:

Be it known that 1, DAVID J. OGILVY, a citizen of the United States, residing at the cityof Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Carboning is a specification.

My present invention is an improvement on the invention set, forth in my United States Patent, No. 706,001, dated July 29th, 1902, for Improvements in process and producing lampblack.

After and during many experiments in this art, I' have found that the methods used heretofore in the manufacture of carbon pigments by the impingement of a. carbonaceous flame against an aqueous surface have not been satisfactory 'for commercial use and employment. In order to render the opera"- tion of production simple and economical and having it possessat the same time,,nov-

lelty and utility, my present invention consists in the impingement of a carbonaceous flame, at any proper and desirable angle. and distance, against an aqueous surface supported on the porous periphery of a rotating cylinder. The porousv periphery ofthe cylinder may be constructed of acloth fabric stretched on a metal or wood frame, or it maybe formedof a porous cement or a baked clay or analogous porous material; the object being, to suppl an absorbent old a sufficient amount of moisture to coolor chill an impingingcarbonaceous flame. t

The carbonaceousflame may be produced by the limited combustion of hydrocarbon gases, mineraloils, resins,cpitches and analogous'elements. The water for an aqueous solution,1 niay be suppliedto the periphery or on top :of ,t ecylin er, where it willuniformly spread on the porous eriphcry for the purpose of uniformly chilling the impinging carbonaceous flame, also for the purpose of uniformly carrying the deposited carbon to a receiver under the cylinder.

The carbon product is removed from-the porous periphery of the cylinder by the water flowing over the porous surface of the cylinder into the receiver placed under the cylinder.

I will now describe one form' of apparatus 1919. Serial No. 313,894.

In the accompanying part of this specification Fig. 1, is a side elevation of the apparatus used by me, partly in section to show construction, and Fig. 2, is a section on the line 22 of Fig. 1. g p y "The rotating'cylinder 1, is supported on drawing forming ,frames 2, 2, on a shaft 3, journa-led at 4, 4,

and provided atone end with a pulley 5, over which a belt passes (not shown), to

revolve said shaft and consequently the cylinder. A water or moisture providing pipe 6 is supported above the cylinder 1, in arms 7, 7, extending upward from the bearings 1, 4, at, each end of the apparatus. This pipe 6, isprovided with a multiplicity of holes or openings 8, through which the water, liquid or moisture falls or passes onto the revolving cylinder 1, as shown. particularly in Fig. 1. The size of these holes or openings may be varied and of any number 'or shape desired or required. Ate'ach end or side of the apparatus I place brackets 9, on which brackets-9, I support the trough 12 and on the brackets 10 I support the gas pipes 13; these gas pipes 13 are curved and.

one is situated at each end of the apparatus. From these gas pipes 13 extending across under the cylinder 1, .I provide, a of gas pipes 14. This net work or series of pipes have buruers or jets 15, which throw a flame of lighted-gas .16, which flames flare or impinge against the cylinder 1. Gas is conveyed to the pipes 13 and 14 through the inlet pipe 17 having avalve 18 for turning thereof. The drip-ping or flow of water -which falls upon and saturates or properly moistens the. porous periphery 20, of cylinder 1, is designated bythe character 19, and it passes through the holes 8, as shown.

The. flame 16 is the carbonaceous flame herein referred to,'andit may be used at [in and ofl the gas, or regulating the amount ly and more continuously Without interruption to the process of production and thus present a commercial process for manufacture.

Of course, the cylinder, or revolving or rotating body structure, "may be round, oval, curvilinear, approximately cylindrical or any such contour as will hold an adequate amount of moisture upon its porous surface while turning and properly deliver the carbon during its operation.

What I claim as new and my invention and desire to secure by Letters Patent, is:

1. The process of producing carbon pig ments by impinging a carbonaceous flame against a wet surface located on the cry of a revolying cylinder.

2. Impinging acarbonaceous flame against any proper location on the wet periphery of a slowly revolving cylinder for the purpose of receiving the carbon deposited thereon from the impinging carbonaceous flame. 3. The impingement of a carbonaceous flame against a moist, porous, approximately cylindrical, peripheral surface, to chill said periphflame and separate the carbon.

In testimony whereof, I afiix my signature at Cincinnati, Ohio, this 25th day of July DAVID J. 'oerLvY 

